Press-driven pump-type toothpaste tube

Abstract

The utility model provides a pump type toothpaste tube driven by pressing, which is characterized in that a lower piston is arranged at the lower part of a closed container body and can move along the axial direction of the closed container body, and a lower valve is arranged at the outlet of the closed container body; the upper cover is connected to the upper portion of the closed container body, the upper piston assembly is arranged in the upper cover and located above the lower valve, the floating type toothpaste outlet pipe is arranged on the upper portion of the upper piston assembly and communicated with an inner channel of the upper piston assembly, one end of the elastic device is connected with the floating type toothpaste outlet pipe, and the other end of the elastic device is connected with the lower piston assembly. The other end of the elastic device is connected with a mounting seat in the upper cover, the movable pressure head is connected with the upper cover, and the movable pressure head is movably connected with the floating type toothpaste outlet pipe; when the movable pressing head is pressed to the bottom, a gap exists between the bottom of the upper piston assembly and the lower valve. And the piston does not move to the bottom of the vacuum pump cavity, so that the driving force required by pressing is reduced, and the pressing convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of toothpaste tubes, and particularly to a pump-type toothpaste tube driven by pressing. Background Art

[0002] The pump-type container adopts a vacuum pump, which utilizes the principle of generating air pressure difference by the vacuum pump to realize the flow of the contents (such as paste or fluid) in the container.

[0003] In the prior art, the vacuum pump of the traditional pump-type container adopts a vacuum adsorption method to suck out the contents in the container. However, when the pump-type container is applied to the toothpaste packaging field, due to the certain viscosity of the toothpaste itself, the user needs to apply a certain degree of force to the pump-type container to pump out the toothpaste.

[0004] The pump-type container in the prior art requires a large pressing force applied by the user during use, which is inconvenient to use and needs to be improved. Summary of the Utility Model

[0005] Aiming at the defects in the prior art, the purpose of the utility model is to provide a pump-type toothpaste tube driven by pressing.

[0006] According to a pump-type toothpaste tube driven by pressing provided by the utility model, it includes a closed container body, an upper cover, a movable pressing head, a floating paste outlet tube, an elastic device, an upper piston assembly, a lower piston and a lower valve; the lower piston is arranged at the lower part of the closed container body and can move along the axial direction of the closed container body, and the lower valve is arranged at the outlet of the closed container body; the upper cover is connected to the upper part of the closed container body, the upper piston assembly is arranged in the upper cover, the upper piston assembly is located above the lower valve, the floating paste outlet tube is arranged at the upper part of the upper piston assembly and is communicated with the internal channel of the upper piston assembly, one end of the elastic device is connected to the floating paste outlet tube, the other end of the elastic device is connected to the mounting seat inside the upper cover, the movable pressing head is connected to the upper cover, and the movable pressing head is movably connected to the floating paste outlet tube; when the movable pressing head is pressed to the bottom, there is a gap between the bottom of the upper piston assembly and the lower valve.

[0007] Preferably, when the movable pressing head is pressed to the bottom, the size of the gap between the bottom of the upper piston assembly and the lower valve is 5% to 33% of the maximum gap between the bottom of the upper piston assembly and the lower valve.

[0008] Preferably, the maximum gap between the bottom of the upper piston assembly and the lower valve is: the distance between the bottom of the upper piston assembly and the lower valve when the movable pressing head does not receive a downward pressing force.

[0009] Preferably, the upper piston assembly includes an upper piston body, a first spring, and a valve plate. The upper piston body has a channel inside that communicates with the floating paste outlet tube. The valve plate is located at the lower end of the upper piston body to close or open the internal channel of the upper piston body. The first spring is arranged in the internal channel of the upper piston body. The lower end of the first spring is connected to the valve plate, and the upper end of the first spring is connected to the floating paste outlet tube.

[0010] Preferably, the valve plate is composed of an intermediate valve core and no more than four support cross beams in the circumferential direction outside the intermediate valve core.

[0011] Preferably, the contact end of the first spring and the valve plate adopts a structure with a horizontal line passing through the center of the circle in the middle.

[0012] And / or, the first spring adopts a structure with a large middle and small ends.

[0013] Preferably, chamfered slopes are provided on all components facing the paste flow direction.

[0014] Preferably, the angle of the chamfered slope is 30 degrees to 45 degrees.

[0015] Preferably, one end of the movable pressure head is inserted into the upper cover. The middle part of the movable pressure head contacts the floating paste outlet tube, and the other end of the movable pressure head extends out of the upper cover.

[0016] Preferably, a second limiting structure is provided on the movable pressure head outside the upper cover. When the second limiting structure contacts the upper outer edge of the upper cover, the movable pressure head is in a state of being pressed to the bottom.

[0017] Compared with the prior art, the present utility model has the following beneficial effects:

[0018] 1. The present utility model forms a second limiting position by the second limiting structure provided on the movable pressure head outside the upper cover and the upper outer edge of the upper cover, restricting the movement range of the movable pressure head. It is ensured structurally that there is a gap between the bottom of the upper piston and the lower valve. When the lever structure composed of the upper cover, the movable pressure head, and the floating paste outlet tube moves downward and is pressed to the bottom, the piston will not move to the bottom of the vacuum pump cavity, which helps to reduce the driving force required for pressing and improves the convenience of pressing.

[0019] 2. The present utility model ensures the stable operation of the valve plate by the first spring adopting a structure with a horizontal line passing through the center of the circle in the middle or a structure with a large middle and small ends.

[0020] 3. The present utility model helps to reduce the impact force during paste flow and the pressure required for paste flow by providing chamfered slopes, improving the convenience of pressing. Description of the Drawings

[0021] Other features, objects, and advantages of the present utility model will become more apparent from the following detailed description of non-limiting embodiments read in conjunction with the accompanying drawings:

[0022] Figure 1 This is an overall structural diagram of a pump-type toothpaste tube mainly showing the first state of the present utility model;

[0023] Figure 2 This is an overall structural diagram of a pump-type toothpaste tube mainly showing the second state of the present utility model;

[0024] Figure 3 This is a schematic diagram of the overall structure of the movable pressing head mainly showing the present utility model;

[0025] Figure 4 This is a schematic diagram of the first spring structure mainly showing the present utility model;

[0026] Figure 5 This is a schematic diagram of the valve sheet structure mainly showing the present utility model.

[0027] Reference numerals:

[0028] Closed container body 1 Lower valve 9

[0029] Upper cover 2 Material storage gap 10

[0030] Movable pressing head 3 Upper piston body 11

[0031] Floating paste outlet tube 4 First spring 12

[0032] Elastic device 5 Valve sheet 13

[0033] Upper piston assembly 6 First limit structure 14

[0034] Material storage bin 7 Second limit structure 15

[0035] Lower piston 8 Specific embodiments

[0036] The present utility model will be described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present utility model, but do not limit the present utility model in any form. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several changes and improvements can still be made. These all belong to the protection scope of the present utility model.

[0037] It should be noted that in this application, "upper", "upper part", and "above" all refer to the direction pointing to the outlet of the closed container body 1 along the axial direction of the closed container body 1, and "lower", "lower part", and "below" all refer to the direction pointing to the bottom of the closed container body 1 along the axial direction of the closed container body 1.

[0038] As Figure 1 , Figure 2 and Figure 3 shown, a pump-type toothpaste tube driven by pressing according to the present utility model includes a closed container body 1, an upper cover 2, a movable pressing head 3, a floating paste outlet tube 4, an elastic device 5, an upper piston assembly 6, a lower piston 8, and a lower valve 9.

[0039] The lower piston 8 is arranged at the lower part of the closed container body 1 and can move along the axial direction of the closed container body 1. The lower valve 9 is arranged at the outlet of the closed container body 1. The upper cover 2 is connected to the upper part of the closed container body 1. The upper piston assembly 6 is arranged inside the upper cover 2. The upper piston assembly 6 is located above the lower valve 9. The floating paste outlet tube 4 is arranged at the upper part of the upper piston assembly 6 and is communicated with the internal channel of the upper piston assembly 6. One end of the elastic device 5 is connected to the floating paste outlet tube 4, and the other end of the elastic device 5 is connected to the mounting seat inside the upper cover 2. The movable pressing head 3 is connected to the upper cover 2, and the movable pressing head 3 is movably connected to the floating paste outlet tube 4.

[0040] When the movable pressing head 3 is in the first state, that is, when the movable pressing head 3 is not subjected to a downward pressing force, the lower valve 9 closes the outlet of the closed container body 1. At this time, the floating paste outlet tube 4 is not pressurized. When the movable pressing head 3 is in the second state, that is, when the movable pressing head is pressed to the bottom under the action of a force, the lower valve 9 opens the outlet of the closed container body 1. The internal channel of the upper piston assembly 6 is communicated with the closed container body 1, and there is a gap between the bottom of the upper piston assembly 6 and the lower valve 9.

[0041] In order for the paste to flow continuously, generally, the volume of toothpaste pumped out per unit time by the paste pump is less than the volume compressed downward by the upper piston assembly 6. With the continuous accumulation of the volume difference, the resistance of pressing gradually changes from mainly viscous flow of the paste to mainly elastic deformation. Therefore, when the upper piston assembly 6 is compressed to a certain position, a sharp change occurs, and a relatively large pressing force is required to drive the upper piston assembly 6 to continue moving downward. Therefore, in the technical solution of this application, by setting that there is a gap between the bottom of the upper piston assembly 6 and the lower valve 9 when the movable pressing head 3 is pressed to the bottom, the continuous compression of the upper piston assembly 6 is stopped, which can effectively reduce the driving force required for pressing, so that even children can press and use the pump-type toothpaste.

[0042] Specifically, one end of the movable punch 3 is inserted into the upper cover 2. The middle part of the movable punch 3 is in contact with the floating paste outlet pipe 4, and the other end of the movable punch 3 extends out of the upper cover 2. Through dimensional design, a labor-saving lever system is formed by the movable punch 3, the upper cover 2, and the floating paste outlet pipe 4. When the movable punch 3 is pressed to the bottom, the gap between the bottom of the upper piston assembly 6 and the lower valve 9 is 5% to 33% of the maximum gap between the bottom of the upper piston assembly 6 and the lower valve 9. It should be further noted that the maximum gap between the bottom of the upper piston assembly 6 and the lower valve 9 is: the distance between the bottom of the upper piston assembly 6 and the lower valve 9 when the movable punch 3 is not subjected to a downward pressing force. The labor-saving ratio of the lever is optimized, and the movement stroke of the upper piston assembly 6 is reduced. Although the paste output is reduced, the driving force required for pressing is reduced.

[0043] As Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, specifically, the upper piston assembly 6 includes an upper piston body 11, a first spring 12, and a valve plate 13. The upper piston body 11 has a channel communicating with the floating paste outlet pipe 4 inside. The valve plate 13 is located at the lower end of the upper piston body 11 to close or open the internal channel of the upper piston body 11. The first spring 12 is arranged in the internal channel of the upper piston body 11. The lower end of the first spring 12 is connected to the valve plate 13, and the upper end of the first spring 12 is connected to the floating paste outlet pipe 4. Further, the contact section between the first spring 12 and the valve plate 13 adopts a structure with a horizontal line passing through the center of the circle in the middle, or the first spring 12 adopts a structure with a large middle and small ends at both ends to ensure the stable operation of the valve plate 13. The valve plate 13 of the present application preferably consists of an intermediate valve core and no more than four support cross beams in the circumferential direction outside the intermediate valve core.

[0044] Furthermore, chamfered slopes are provided on all components facing the paste flow direction. The angle of the chamfered slope is 30 degrees to 45 degrees, enabling better flow of the toothpaste. The impact force received by the paste during flow is smaller, reducing the pressure required for the paste to flow.

[0045] More specifically, the middle part of the movable punch 3 is a pressure-applying part, and the end of the movable punch 3 extending out of the upper cover 2 is a pressure-receiving part. The pressure-applying part of the movable punch 3 presses on the floating paste outlet pipe 4. When a force acts on the pressure-receiving part of the movable punch 3, the pressure-applying part exerts a downward force on the floating paste outlet pipe 4.

[0046] A first limiting structure 14 is provided at the lower part of the movable punch 3. The first limiting structure 14 and the upper inner edge of the upper cover 2 form a first limiting position, and upward movement of the movable punch 3 is not allowed at the first limiting position. Under normal conditions, the movable punch 3 is not subjected to an externally applied pressing force, and the movable punch 3 is in the first limiting position.

[0047] The movable pressure head 3 is provided with a second limiting structure 15 outside the upper cover 2. When the second limiting structure 15 contacts the upper outer edge of the upper cover 2, the movable pressure head 3 is in the state of being pressed to the bottom.

[0048] With the help of the first limiting structure 14 at the lower part of the movable pressure head 3 and the upper inner edge of the upper cover 2 to form a first limiting position, and the second limiting structure 15 provided outside the upper cover 2 of the movable pressure head 3 and the upper outer edge of the upper cover 2 to form a second limiting position, the movement range of the movable pressure head 3 is restricted, so as to ensure structurally that there is a material storage gap 10 between the bottom of the upper piston assembly 6 and the lower valve 9. When the lever structure moves downward and is pressed to the bottom, the piston will not move to the bottom of the vacuum pump cavity. At this time, the situation that the elastic deformation of the paste increases violently and the viscous flow decreases violently due to the piston being pressed to the bottom will not occur.

[0049] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0050] The specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. Without conflict, the embodiments of the present application and the features in the embodiments can be arbitrarily combined with each other.

Claims

1. A press-driven pump-type toothpaste tube, characterized in that: It comprises a closed container body (1), an upper cover (2), a movable pressure head (3), a floating paste outlet pipe (4), an elastic device (5), an upper piston assembly (6), a lower piston (8) and a lower valve (9); The lower piston (8) is arranged at the lower part of the closed container body (1) and can move along the axial direction of the closed container body (1), and the lower valve (9) is arranged at the outlet of the closed container body (1); The upper cover (2) is connected to the upper part of the closed container body (1); the upper piston assembly (6) is arranged in the upper cover (2); the upper piston assembly (6) is located above the lower valve (9); the floating paste discharge pipe (4) is arranged on the upper part of the upper piston assembly (6) and is communicated with the internal channel of the upper piston assembly (6); one end of the elastic device (5) is connected to the floating paste discharge pipe (4); the other end of the elastic device (5) is connected to the mounting seat inside the upper cover (2); the movable pressure head (3) is connected to the upper cover (2); and the movable pressure head (3) is movably connected to the floating paste discharge pipe (4); When the movable pressure head (3) is pressed to the bottom, a gap exists between the bottom of the upper piston assembly (6) and the lower valve (9).

2. The push-driven pump-type toothpaste tube according to claim 1, characterized in that: When the movable pressure head (3) is pressed to the bottom, the gap between the bottom of the upper piston assembly (6) and the lower valve (9) is 5% to 33% of the maximum gap between the bottom of the upper piston assembly (6) and the lower valve (9).

3. The push-driven pump-type toothpaste tube according to claim 2, characterized in that: The maximum clearance between the bottom of the upper piston assembly (6) and the lower valve (9) is: The distance between the bottom of the upper piston assembly (6) and the lower valve (9) when the movable pressure head (3) is not subjected to downward pressing force.

4. The push-driven pump-type toothpaste tube according to claim 1, characterized in that: The upper piston assembly (6) comprises an upper piston body (11), a first spring (12) and a valve plate (13); the upper piston body (11) has a passage inside thereof which is connected to the floating paste outlet pipe (4); the valve plate (13) is located at the lower end of the upper piston body (11) and closes or opens the internal passage of the upper piston body (11); The first spring (12) is arranged in the internal channel of the upper piston body (11), the lower end of the first spring (12) is connected to the valve plate (13), and the upper end of the first spring (12) is connected to the floating paste outlet pipe (4).

5. The push-driven pump-type toothpaste tube according to claim 4, characterized in that: The valve plate (13) is composed of a middle valve core and no more than four supporting cross beams in the circumferential direction outside the middle valve core.

6. The push-driven pump-type toothpaste tube according to claim 4, characterized in that: The contact ends of the first spring (12) and the valve plate (13) adopt a structure in which a horizontal line in the middle passes through the center of the circle; And / or, the first spring (12) adopts a structure that is larger in the middle and smaller at both ends.

7. The push-driven pump-type toothpaste tube according to claim 1, characterized in that: All parts facing the paste flow direction are provided with chamfers.

8. The push-driven pump-type toothpaste tube according to claim 7, characterized in that: The angle of the chamfered surface is 30 to 45 degrees.

9. The push-driven pump-type toothpaste tube according to claim 1, characterized in that: One end of the movable pressure head (3) is inserted into the upper cover (2), the middle of the movable pressure head (3) is in contact with the floating paste outlet tube (4), and the other end of the movable pressure head (3) extends out of the upper cover (2).

10. The push-driven pump-type toothpaste tube according to claim 1, characterized in that: The movable pressing head (3) is provided with a second limiting structure (15) outside the upper cover (2); when the second limiting structure (15) contacts the upper outer edge of the upper cover (2), the movable pressing head (3) is in a state of being pressed to the bottom.

Images